Problem: The user sees the following “Cannot open the disk” VMware error message when attempting to power on the Axcient Virtual Appliance and the vApp cannot be powered up.
While this kind of error may display in different ways, here is an example of such an error:
Cause: The vApp fails to power on due to the VMFS heap size being too low.
Solution: Please modify the heap size to the maximum specified heap size for the ESX version.
This process is described in the following VMware article.